.ad{
  display: flex;
}
.app{
 background:#F7F7F7;
}
.logo{
  width: 267px;
  height: 84px;
  background: #fff;
 display: flex;
  justify-content: center;
  align-items: center;
}
.logo img{
  width:152px;
  height:40px;
  display: inline-block;
}
.tab{
   width: 230px;
   background: #fff;
   margin-top:20px;
   height: 830px;
   padding: 15px;
}
.search input{
  width: 190px;
  height:30px;
  border-radius: 4px;
  padding-left:30px;
  border: 1px solid rgba(187, 187, 187, 100);
}
.tab ul li img{
  width:24px;
  height:24px;
  vertical-align: bottom;
}
.tab ul li{
  margin-top: 17px;
  }
.search{
  position: relative;
}
.tab ul{
  margin-top:20px;
}
.tab ul li{
  cursor: pointer;
}
.search img{
  position: absolute;
  width: 20px;
  height: 20px;
  left:4px;
  bottom:7px;
}
nav ul li span{
  color: rgba(108, 108, 108, 100);
  font-size: 14px;
  font-family: Roboto;
  margin-left: 10px;
}
nav ul li span.active{
  color: rgba(5, 5, 5, 100);
}



 .content{
      width:100%;
      padding-left: 10px;
      background: #fff;
      overflow: hidden;
      margin-left: 10px;
   }
